here's my take:
i'm not a tattooer. with that said, i've got the utmost respect for the craft. if i ever had aspirations to become a tattooer, i'd do everything in my power to go about it the right way, and in an honest way. i'm not trying to be a dick, but you've gotta put yourselves in their shoes for a second. you're going into their shop trying to learn something from them, almost trying to take the easy way in learning things. if i were a tattooer, i'd treat you the same way. to them, who the hell are you? you're some dude, walking in, attempting to take their hard earned secrets and knowledge without any of the work. the same could be said of any craft. you're trying to leech knowledge off of them. even if you're doing everything sterile out of your home, you're still not doing things the right way. you need to keep that in mind. scratching is scratching. anyway that you cut it, it's still scratching.